| /* |
| * Copyright (C) 2011, Chris Aniszczyk <caniszczyk@gmail.com> |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package org.eclipse.jgit.api; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.URISyntaxException; |
| import java.util.concurrent.Callable; |
| |
| import org.eclipse.jgit.api.errors.InvalidRemoteException; |
| import org.eclipse.jgit.api.errors.JGitInternalException; |
| import org.eclipse.jgit.dircache.DirCache; |
| import org.eclipse.jgit.dircache.DirCacheCheckout; |
| import org.eclipse.jgit.errors.IncorrectObjectTypeException; |
| import org.eclipse.jgit.errors.MissingObjectException; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.lib.NullProgressMonitor; |
| import org.eclipse.jgit.lib.ProgressMonitor; |
| import org.eclipse.jgit.lib.Ref; |
| import org.eclipse.jgit.lib.RefUpdate; |
| import org.eclipse.jgit.lib.Repository; |
| import org.eclipse.jgit.revwalk.RevCommit; |
| import org.eclipse.jgit.revwalk.RevWalk; |
| import org.eclipse.jgit.transport.CredentialsProvider; |
| import org.eclipse.jgit.transport.FetchResult; |
| import org.eclipse.jgit.transport.RefSpec; |
| import org.eclipse.jgit.transport.RemoteConfig; |
| import org.eclipse.jgit.transport.URIish; |
| |
| /** |
| * Clone a repository into a new working directory |
| * |
| * @see <a href="http://www.kernel.org/pub/software/scm/git/docs/git-clone.html" |
| * >Git documentation about Clone</a> |
| */ |
| public class CloneCommand implements Callable<Git> { |
| |
| private String uri; |
| |
| private File directory; |
| |
| private boolean bare; |
| |
| private String remote = Constants.DEFAULT_REMOTE_NAME; |
| |
| private String branch = Constants.HEAD; |
| |
| private ProgressMonitor monitor = NullProgressMonitor.INSTANCE; |
| |
| private CredentialsProvider credentialsProvider; |
| |
| /** |
| * Executes the {@code Clone} command. |
| * |
| * @throws JGitInternalException |
| * if the repository can't be created |
| * @return the newly created {@code Git} object with associated repository |
| */ |
| public Git call() throws JGitInternalException { |
| try { |
| URIish u = new URIish(uri); |
| Repository repository = init(u); |
| FetchResult result = fetch(repository, u); |
| checkout(repository, result); |
| return new Git(repository); |
| } catch (IOException ioe) { |
| throw new JGitInternalException(ioe.getMessage(), ioe); |
| } catch (InvalidRemoteException e) { |
| throw new JGitInternalException(e.getMessage(), e); |
| } catch (URISyntaxException e) { |
| throw new JGitInternalException(e.getMessage(), e); |
| } |
| } |
| |
| private Repository init(URIish u) { |
| InitCommand command = Git.init(); |
| command.setBare(bare); |
| if (directory == null) |
| directory = new File(u.getHumanishName(), Constants.DOT_GIT); |
| command.setDirectory(directory); |
| return command.call().getRepository(); |
| } |
| |
| private FetchResult fetch(Repository repo, URIish u) |
| throws URISyntaxException, |
| JGitInternalException, |
| InvalidRemoteException, IOException { |
| // create the remote config and save it |
| RemoteConfig config = new RemoteConfig(repo.getConfig(), remote); |
| config.addURI(u); |
| |
| final String dst = Constants.R_REMOTES + config.getName(); |
| RefSpec refSpec = new RefSpec(); |
| refSpec = refSpec.setForceUpdate(true); |
| refSpec = refSpec.setSourceDestination(Constants.R_HEADS + "*", dst + "/*"); //$NON-NLS-1$ //$NON-NLS-2$ |
| |
| config.addFetchRefSpec(refSpec); |
| config.update(repo.getConfig()); |
| repo.getConfig().save(); |
| |
| // run the fetch command |
| FetchCommand command = new FetchCommand(repo); |
| command.setRemote(remote); |
| command.setProgressMonitor(monitor); |
| if (credentialsProvider != null) |
| command.setCredentialsProvider(credentialsProvider); |
| return command.call(); |
| } |
| |
| private void checkout(Repository repo, FetchResult result) |
| throws JGitInternalException, |
| MissingObjectException, IncorrectObjectTypeException, IOException { |
| |
| if (branch.startsWith(Constants.R_HEADS)) { |
| final RefUpdate head = repo.updateRef(Constants.HEAD); |
| head.disableRefLog(); |
| head.link(branch); |
| } |
| |
| final Ref head = result.getAdvertisedRef(branch); |
| if (head == null || head.getObjectId() == null) |
| return; // throw exception? |
| |
| final RevCommit commit = parseCommit(repo, head); |
| |
| boolean detached = !head.getName().startsWith(Constants.R_HEADS); |
| RefUpdate u = repo.updateRef(Constants.HEAD, detached); |
| u.setNewObjectId(commit.getId()); |
| u.forceUpdate(); |
| |
| DirCache dc = repo.lockDirCache(); |
| DirCacheCheckout co = new DirCacheCheckout(repo, dc, commit.getTree()); |
| co.checkout(); |
| } |
| |
| private RevCommit parseCommit(final Repository repo, final Ref ref) |
| throws MissingObjectException, IncorrectObjectTypeException, |
| IOException { |
| final RevWalk rw = new RevWalk(repo); |
| final RevCommit commit; |
| try { |
| commit = rw.parseCommit(ref.getObjectId()); |
| } finally { |
| rw.release(); |
| } |
| return commit; |
| } |
| |
| /** |
| * @param uri |
| * the uri to clone from |
| * @return this instance |
| */ |
| public CloneCommand setURI(String uri) { |
| this.uri = uri; |
| return this; |
| } |
| |
| /** |
| * The optional directory associated with the clone operation. If the |
| * directory isn't set, a name associated with the source uri will be used. |
| * |
| * @see URIish#getHumanishName() |
| * |
| * @param directory |
| * the directory to clone to |
| * @return this instance |
| */ |
| public CloneCommand setDirectory(File directory) { |
| this.directory = directory; |
| return this; |
| } |
| |
| /** |
| * @param bare |
| * whether the cloned repository is bare or not |
| * @return this instance |
| */ |
| public CloneCommand setBare(boolean bare) { |
| this.bare = bare; |
| return this; |
| } |
| |
| /** |
| * @param remote |
| * the branch to keep track of in the origin repository |
| * @return this instance |
| */ |
| public CloneCommand setRemote(String remote) { |
| this.remote = remote; |
| return this; |
| } |
| |
| /** |
| * @param branch |
| * the initial branch to check out when cloning the repository |
| * @return this instance |
| */ |
| public CloneCommand setBranch(String branch) { |
| this.branch = branch; |
| return this; |
| } |
| |
| /** |
| * The progress monitor associated with the clone operation. By default, |
| * this is set to <code>NullProgressMonitor</code> |
| * |
| * @see NullProgressMonitor |
| * |
| * @param monitor |
| * @return {@code this} |
| */ |
| public CloneCommand setProgressMonitor(ProgressMonitor monitor) { |
| this.monitor = monitor; |
| return this; |
| } |
| |
| /** |
| * @param credentialsProvider |
| * the {@link CredentialsProvider} to use |
| * @return {@code this} |
| */ |
| public CloneCommand setCredentialsProvider( |
| CredentialsProvider credentialsProvider) { |
| this.credentialsProvider = credentialsProvider; |
| return this; |
| } |
| |
| } |